<template>
	<view class="u-wrap">
		<view class="flex bg-fff mt20 pt28 pb20 px20">
			<view class="color-666 fs28">
				所在城市：
			</view>
			<view class="color-zs flex1" @click="setAdd(myAdd2)">
				{{myAdd2.name||'定位中'}}
			</view>
			<view class="flex border row-center" @click="getLocation()">
				<image src="/static/img/index/address.png" class="h30 w30" mode=""></image>
				<view class="color-232323 fs26 ml8">
					重新定位
				</view>
			</view>
		</view>
		<view class="u-menu-wrap">
			<scroll-view scroll-y scroll-with-animation class="u-tab-view menu-scroll-view" :scroll-top="scrollTop">
				<view v-for="(item,index) in tabbar" :key="index" class="u-tab-item"
					:class="[current==index ? 'u-tab-item-active' : '']" :data-current="index"
					@tap.stop="swichMenu(index)">
					<text class="u-line-1">{{item.name}}</text>
				</view>
			</scroll-view>
			<block v-for="(item,index) in tabbar" :key="index">
				<scroll-view scroll-y class="bg-fff " v-if="current==index">
					<view class="page-view">
						<view class="class-item">
							<view class="radius12 mb20 h76 flex row-between px30" @click="setAdd(item1)"
								v-for="(item1, index1) in item.city" :key="index1"
								:class="myAdd.id==item1.id?'bg-zs-007':'bg-f8f'">
								<view class="item-menu-name">{{item1.name}}</view>
								<image src="/static/img/index/select1.png" class="h34 w34" mode=""
									v-if="myAdd.id==item1.id">
								</image>
							</view>
						</view>
					</view>
				</scroll-view>

			</block>
		</view>
		<!-- <view class="h120"></view>
		<view class="pf bottom0 left0  w-max flex">
			<view class="p24 flex1">
				<u-button type="warning" plain ripple @click="$navBack()">取消</u-button>
			</view>
			<view class="p24 flex1">
				<u-button type="warning" ripple @click="submit">确认</u-button>
			</view>
		</view> -->
	</view>
</template>

<script>
	export default {
		data() {
			return {
				// tabbar: this.$getCache('myAdd')||[],
				tabbar: '',
				scrollTop: 0, //tab标题的滚动条位置
				current: 0, // 预设当前项的值
				menuHeight: 0, // 左边菜单的高度
				menuItemHeight: 0, // 左边菜单item的高度
				myAdd: this.$getCache('myAdd') || '',

				myAdd2: ''
			}
		},
		computed: {

		},
		watch:{
			myAdd(){
				this.lookAdd()
			}
		},
		onLoad() {
			this.getLocation()
			this.getRegion()
		},
		onShow() {
			this.myAdd = this.$getCache('myAdd') || ''
		},
		methods: {
			getCityId(location) {
				this.$request('/master/commom/getCityId', {
					location
				}).then(res => {
					this.myAdd2 = res.data
					if (!this.myAdd) {
						this.myAdd = res.data
						this.$setCache('myAdd', res.data)
					}
				})
			},
			getLocation() {
				this.myAdd2=''
				let obj = {
					type: 'gcj02',
					success: (res) => {
						this.$setCache('location', res)
						this.getCityId(res.latitude + ',' + res.longitude)
					},
					fail(err) {
						console.log('err', err);
					},
				}
				uni.getLocation(obj);

			},
			submit() {
				uni.$emit('setAdd', this.myAdd)
				this.$navBack()
			},
			getRegion() {
				this.tabbar = this.$getCache('addList') || []
				this.lookAdd()
				this.$request('/member/index/getCity').then(res => {
					this.tabbar = res.data
					this.$setCache('addList', res.data)
					this.lookAdd()
				})
			},
			setAdd(item) {
				if (item.id == 0) return this.$msg('当前城市暂未开通')
				this.myAdd = item
				this.$setCache('myAdd', item)
				this.$navBack()
			},
			lookAdd() {
				if (!this.tabbar.length) return
				if (!this.myAdd) return this.$msg('请选择')
				if (this.tabbar.length && this.myAdd) {
					let index = this.tabbar.findIndex(i => i.city.find(e => e.id == this.myAdd.id))
					if(index!=-1)this.current = index
				}
			},

			getImg() {
				return Math.floor(Math.random() * 35);
			},
			// 点击左边的栏目切换
			async swichMenu(index) {
				if (index == this.current) return;
				this.current = index;
				// 如果为0，意味着尚未初始化
				if (this.menuHeight == 0 || this.menuItemHeight == 0) {
					await this.getElRect('menu-scroll-view', 'menuHeight');
					await this.getElRect('u-tab-item', 'menuItemHeight');
				}
				// 将菜单菜单活动item垂直居中
				this.scrollTop = index * this.menuItemHeight + this.menuItemHeight / 2 - this.menuHeight / 2;
			},
			// 获取一个目标元素的高度
			getElRect(elClass, dataVal) {
				new Promise((resolve, reject) => {
					const query = uni.createSelectorQuery().in(this);
					query.select('.' + elClass).fields({
						size: true
					}, res => {
						// 如果节点尚未生成，res值为null，循环调用执行
						if (!res) {
							setTimeout(() => {
								this.getElRect(elClass);
							}, 10);
							return;
						}
						this[dataVal] = res.height;
					}).exec();
				})
			}
		}
	}
</script>
<style>
	page {
		background-color: #F8f8f8
	}
</style>
<style lang="scss" scoped>
	.border {
		width: 180rpx;
		height: 64rpx;
		border: 0.8rpx solid rgba(0, 190, 195, 0.30);
		border-radius: 32.8rpx;
	}

	.u-wrap {
		height: calc(100vh);
		/* #ifdef H5 */
		height: calc(100vh - var(--window-top));
		/* #endif */
		display: flex;
		flex-direction: column;
	}

	.u-search-box {
		padding: 18rpx 30rpx;
	}

	.u-menu-wrap {
		flex: 1;
		display: flex;
		overflow: hidden;
	}

	.u-search-inner {
		background-color: rgb(234, 234, 234);
		border-radius: 100rpx;
		display: flex;
		align-items: center;
		padding: 10rpx 16rpx;
	}

	.u-search-text {
		font-size: 26rpx;
		color: $u-tips-color;
		margin-left: 10rpx;
	}

	.u-tab-view {
		width: 200rpx;
		height: 100%;
	}

	.u-tab-item {
		height: 110rpx;
		background: #f6f6f6;
		box-sizing: border-box;
		display: flex;
		align-items: center;
		justify-content: center;
		font-size: 26rpx;
		color: #999999;
		font-weight: 400;
		line-height: 1;
	}

	.u-tab-item-active {
		position: relative;
		color: #232323;
		font-size: 28rpx;
		font-weight: 600;
		background: #fff;
	}

	.u-tab-item-active::before {
		content: "";
		position: absolute;
		border-left: 4px solid $zs;
		height: 32rpx;
		left: 0;
		top: 39rpx;
	}

	.u-tab-view {
		height: 100%;
	}

	.right-box {
		background-color: rgb(250, 250, 250);
	}

	.page-view {
		padding: 16rpx;
	}

	.class-item {
		margin-bottom: 30rpx;
		background-color: #fff;
		padding: 16rpx;
		border-radius: 8rpx;
	}

	.item-title {
		font-size: 26rpx;
		color: $u-main-color;
		font-weight: bold;
	}

	.item-menu-name {
		font-weight: normal;
		font-size: 26rpx;
		color: #232323;
	}

	.item-container {
		display: flex;
		flex-wrap: wrap;
	}

	.thumb-box {
		width: 33.333333%;
		display: flex;
		align-items: center;
		justify-content: center;
		flex-direction: column;
		margin-top: 20rpx;
	}

	.item-menu-image {
		width: 120rpx;
		height: 120rpx;
	}
</style>
